Bevel shearing machine



A, R. ROBERTS AND G. T, SMITH. BEVEL SHEARING MACHINE.

APPLICATION HLED SEPT. 15, 1920.

1,42 ,216, mm Aug. 15, 1922. I

2 SHEETS-SHEET 2.

MUN!!! l M m w WlTNESSE S I W BY ALBERT a; oe e e [inn eaceen r. SMITEIQE n emiaa rEnnassaiJ.

'BEVEL snnanrneraacn ivn Specification ofiLettjers Patent.

Application filed September 15, 1920: Serial Ita -410,384., Y

county of Hamilton and State of Tennessee,

have invented new and useful Bevel Shearing Machine, of which the following is a specification.

This invention relates to bevel shearing machines of cutters. I i

The object of the invention is to provide such a machine which will bevel theedges of plates, sheet metal bars, and all'structural steel in opposite directions without necessitating the turning of the plates, bars or the like over or end forend. The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming pjartvot this specification, with the understand ng, however, that-the invention is not confined to any strict conformity with the showing in the drawing, but may be changed and modified so long as suchchanges and modifi= the type which employrotary cations mark no material departure from the in the appended claims,

In the drawing f V 7 Fig. 1 isea verticallongitudinal sectional view of the improved loevelshearing machine forming the subject of the present insalient features ofthe inventionas expressed 1 vention.

v 'Fig. 2 is' an elevation of the machine looking from the left hand side of Fig. -1', and indicating the distant gearing in dotted lines Fig. 8 is a fragmentary horizontal-cross section illustrating the .mounting, of the guide rollers. q

Fig. 4 isacross s "ction through a plate 2 showing an ed 'e beveled by, the upper pair of four edges.

.The numeral 1O designates the main frame? of the machine of the invention, which frame is designed to enclose substantially all the cutters. v V I p Fig. 5 is'a Sl111112Jr Y18W"O1' a plate after itsedge has been beveled by; the lower pair of cutters. I

,"Fig; G is a top plan view oftheplate io f' Figs. 4 and 5, showing'the beveling of moving parts of the machine except the cutters and the driving-gear. A pair of alined bearings 11 and 12 is provided on the frame to support a main shaft 13 extending hori A bevel gear-.16 iskeyed 13 betweenbearing- 12; andflspur' gear 1-17, this beveljgear being rotated once with each,

zontally through they machine from one end to the othenm Upon the forwardend of shaft 13 a cutter leis-mounted, being re- 'movably held upon the shaftby a. nut 15.

The cutter 1 1 is beveled along both edges, as

shown, and is designedto, cooperate with.

upper and lower auxiliary ,cutters to effect beveling of the edges of plates and bars. I

Standards 18 and '19, joined together by a base, are provided for supporting the bear.- I"

has a bearing 20 at its-upper end and the standard 19 has an alined bearing 20%, a a

countershaft 21 being supportedwithin these two, bearings. Upon the conntershaftl21. a

gear 23 is mountech'such gearpreferably be,-

mg; located. ntermediate of the 'two bearings 1 20 and 20 At oneend of shaft 21 there is a'pinion 22 meshing with a spur'gear 17secured upon the main shaft 13'. In this ay, rotation of the gear .23 eflectsrotation of the" mainshaft 13, 'thoughat a considerably reducedspeed. The spur gear17 is held upon the main shaft by a nut 26.

The upper end of the standard 19 has a hearing 27 formed thereon for receivingone end of an extension 28 of the main shaft 13.

Ansarbor' 25 is carriedrbythe extension 28 I and has secured thereon a pinion 2&adapted tomesh with the gear-23. Fast upon. the arbor 25 aretwo. tight pulleys 29and 31, While a; loosely'mounted pulley 30is located direction indicated by the. arrow heads. It

. will be clear. thatrotation of [eithe'rof-s the ;between :the pulleys 29' and 31 The machine is-tobe drivenbyabelt engaging. .withf ione of the pulleys, turning the same inzth'e tightjpulleys' causes correspondingirotatibn v of the pinion 24:.with consequent, revolution of the'niainshaft o'f'the machine; i

Instead of employing a. b

elt and pulleys ,a

reversible motor may be,-mounted adjacent the machine with its' pinion QEmeshing-v'Jith the gear 23. Since 'theparticular means. for

.drivi'ngthe bfevelin'g shearslforms no part i p suchf'means are omitted. :W

of" the present invention; furtherndetails of revolution, offthe spur gear. JThe lower part of the, main frame ofthe machine has a'semi cylindrical?inwardly-directed member-z 32 end of auxiliary frame 83 is supported by a set screw 35 which provides adjustable means for moving; the auxiliary frame 33 within the space l2 afforded by the frame member 32. The shaft 36 has a collar 39 preventing longitudinal movement of the shaft downwardly. A disk cutter #10 is secured to the shaft adjacent the collar 39. At the extreme outer or upper end of the shaft 36 a bevel roller a1 is mounted, said roller constituting a supporting or holdup wheel and being loosely mounted on the shaft.

The-upper part of the main frame has a semi-cylindrical member f?) similar to member32 and providing ahousin'g for an upper auxiliary frame 4A hinged upon a pivotal element 15. An auxiliary shaft &6 is received within the frame 4 1-, which shaft carries a bevel gear -17 at its upper end, a nut 48 holding-the bevel gear in place. The bevel gear f7 meshes with the bevel gear 16 so as to be driven thereby. The three bevel gears 16, 37 and 4'7 are of the same size whereby the shafts 13, 36 and 46 are rotated at the same speed with the gears 37 and 47 turning in a direction opposite to the direction in which shaft 13 turns. The lower end of shaft d6 carries. a collar a6 analogous to the collar 39. A disk cutter 57 similar to cutter 40 is also mounted on shaft 16 adjacent the collar -l6 As seen in Fig. 2, a U-shaped frame 57 is pivoted upon the main frame of the machine by studs 59, and which'passes around the lower end of the auxiliary frame a l to provide a support for such end. A beveled hold-downwheel or roller 52 is held by a headed stud 52 upo'nthe intermediate part Lugs or ears 56 joined to the member 43 of the frameprovide means for holding the upper adjusting screws 58, the lower ends of which bear upon the upper edges of the arms of the U-sh'a-ped membern A set screw- 19 is passedthroug h the ni'ember 4:3 and bears against the auxiliary'frame 44. The Ushaped frame member 5 may be swung upwardiy or removed altogether from the machine, if desired. boiler heads, domes or angle bars are to be beveled, the removability of the ti -shaped holder and wheel is a valuable feature. Both wheels 1 and 52 are removable and replaceable by other wheels of varying diameter, though all. such wheels should be beveled as shown in order to either hold down or hold up the work in proper relation to the upper or lower pairs of cutters, as the case may be. 7

A. stud 53 is passed through the member 43 and is engaged with the hinged frame member 44. A spring 54L surrounds the stud or bolt 53, and a nut and washer 55 are provided on the outer end of the bolt to hold the coil spring: thereon. The spring 54 holds the auxiliary frame 44: up and pre vents it from falling to its lowermost working position.

On each side of the cutters and supported on the main frame by brackets 63 are guide rollers 60, such guide rollers being; held upon the outer ends of the bifurcated memhere 61, which, in turn, are adjusted within the brackets by hand wheels 6:2 having screw threaded shanks and engaging); with the bifurcated members 61. The rollers both lie in the same vertical plane and may be adjusted instantly during the process of beveling, if necessary, by merely turning the hand wheels. The function of these guide rollers is to regulate the width ofthe shaving cut off from the piece being beveled and to prevent the piece from creeping in toward the bed of the machine.

The operation of the machine will. now be described. If a plate is to be beveled as indicated. in Fig. 4-, the plate is entered between the upper pair of cutting disks 51, 14:. If the plate is to be beveled as indicated in Fig. 5, the motor or driving belt will be reversed and the piece entered between the lower pair of cutters 4O, 14. The beveled edge 65 is produced by the upper pair of cutters rotating; in one direction while the beveled cal-3.5055 is produced by the lower pair of cutters rotated in the re verse direction. The plate 65 may be beveled as indicated in Fig. 6 without turning it over by using the machine of the present invention. Where glatesare very large and heavy, great deal of time and labor is nec} essary to permit the turning over of the same. In the case of a very long bar it is frequently necessary to take it out of the shop'to permit turning it over end for end,

thereby losing much time and involving con sider'ahle outlay of labor. By the machine of the present invention, the two pairs of disk cutters rotatable in either direction allow the beveling of the edges of all sorts of structural shapes without turning the plates, bars'or the like over or end for end. It is this characteristic of the present new In case the flanges of from all other machinesof this general type. I

What is claimed is 1. In a bevel shearing machine, a main frame, a main-shaft, a pair of auxiliary frames hingedly mounted on the main frame, a-shaft journaled in each auxiliary frame, beveling cutters on the corresponding ends of each shaft, and means for rotatin thethree shafts in unison, whereby the ec ges of plates or bars may be beveled in opposite directions without necessitating the turning over of theplates or turning end for end of the bars. I j I 2-. In a bevel shearing machine, a main frame, a main shaft, a pair of auxiliary frames hingedly mounted at one end on the mainframe, a shaft journaled in each auxiliary frame, a beveling cutter on one end of each shaft, means for adjusting the positions of the free ends of the auxiliary frames whereby the cutters on the'shafts in the auxiliary frames are moved toward or from the cutter on the main shaft, and means for rotating the three shafts in unison,

whereby the edges of'plates or bars maybe beveled in opposite directions without necessitating theflturning over of the plates or turning end'for end of the bars. i

8. In a bevel shearing machine, a frame, a main shaft,-a rotary cutter mounted on one end of said shaft, a pair of auxiliary rotary beveling cutters mounted above and below the first-named cutter, and means for rotating the three cutters in unison, whereby the edges of plates or bars may be beveled in opposite directions without necessitating the turning over of the plates or turning end for end of the bars.

l. In a bevel shearing machine, a frame, a main shaft, a rotary cutter mounted on one end of said shaft, a pair of auxiliary rotary cutters mounted one above and one below the first-named cutter, means for adjusting the vertical positions of the auxiliary cutters toward and from the cutter on the main shaft,and means for rotatingthe three cutters in unison, whereby the edges of plates or bars may be beveled in opposite directions without necessitating the turning over of the plates or turning end for end of the bars. o

5. In a bevel shearing machine, a frame, a main shaft, a rotary cutter mounted on one end of said shaft, a pair' of auxiliary rotary cutters mounted above and below the first-named cutter, and means for rotating the three cutters in unison and at the same speed with'the pairs of adjacent cutters rotating in opposite directions, said auxiliary cutters rotating in planes in clined with respect to the vertical and at an angle to each other.

6. In a bevel shearing machine, a main shaft, a main frame, a pair of auxiliary whereby bereling may be accomplished in opposite directions without turning overthe work, I t p 7. In bevel shearing machine, a frame, a main shaft, a pair 'ofauxiliary frames mounted at one end on 'the main frame, a shaftjournaled ineach auxiliary frame, cutters on'the 'corresponding end of eachshaft, means-forrotating the three shafts in unison, means foreffecting re.- versi ng' of the direction of rotation7of'the shafts, the three shafts lying in the same vertical plane and the auxiliary' cutters lying in planes divergent outwardly with respect I to the machine. 8. In a bevel shearing machine,la frame,"a main shaft, a rotary cutter mounted onione end of said shaft and rotatinginajvertical plane, a pair of auxi liary rotary cutters mounted above and below the first-named cutter, means for adjusting the vertical positions of the auxiliary cutterstowardj and '95 from the intermediate cutter, and means a shaft journaled in each auxiliary. frame,

cutters arranged-to cut astrip of material on a bevel on one end of each shaft, means for adjusting the vertical positionsof theauxiliary cutters toward and from-the intermediate cutter, means for rotating the three 1 shafts in unison whereby adjacent pairs, of cutters are rotated in opposite directions, and means for reversing the direction of rotation of the cutters whereby beveling may be accomplishedin opposite directions without turning over the work. 10. In a bevel'shearing machine, a main I frame, a mainshaft, a pair r ,of'-auxiliary" frames mounted on .the'main frame, a shaft journaled ineach auxiliary, ,framej-cutter's on one end of each,shaft, wheels"or rollers associated with the cutters'f'on ,the auxiliary shafts butrotatableindependently thereof. and adapted to holdup and hold do'wn'the i work as the case may be, andmeans for ro-' tating the three cutters in unison. i

11. In a bevel shearing machine, a frame, a main shaft, a rotary cutter mounted on one end of said shaft, a pair of auxiliary rotary cutters mounted above and below the first-named cutter, means for rotating the three cutters in unison, rotatable means associated with each an iary cutter but independent thereof for holdin up and hold ing down the worlr against adyrcent pairs of cutters, and means for adjusting the positions of the auxi iary cutters toward and from the main shaft cutter.

12. In a bevel shearing machine, aframe, amain shaft, a rotary cutter mounted on one end of said shaft, a pair of auxiliary rotary cutters mounted above and below the first-named cutter, means for rotating the three cutters in unison and the same speed With the pairs of adjacent cutters rotating in opposite directions, said auxiliary cutters rotating in planes inclined with respect to the vertical, and rotatable means associated. with each auxiliary cutter but independent thereof for holding up and holding down the work against adjacent pairs of cutters.

13. In a bevel shearing machine, a main frame, a main shaft, a pair of auxiliary frames hingedly mounted on the main frame, a shaft journaled in each auxiliary frame, cutters onone end of each shaft, means for rotating the three shafts in unison whereby adjacent pairs of cutters are rotated in opposite directions, means for reversing the direction of rotation of the cutters whereby beveling .in opposite directions may be accomplished without turning over the work, and wheels or rollers associated with the cutters on, the auxiliary shaft but rotatable independently thereof and adapted to hold up and hold down the work as the case may be.

14:. In a bevel shearing machine, a main frame, main shaft, a pair of auxiliary frames hingedly mounted on the main frame, a shaft journaled in each auxiliary frame, cutters secured on the'corresponding end of each shaft, means for rotating the three shafts in unison, a Urshaped frame pivot ally mounted in surrounding or enclosing relation relative to the upper auxiliary frame and provided with means for adjusting its position, and a roller or wheel mounted on the U-shaped frame for holding.

down the work. said U-shaped frame providing means whereby the hold-down roller may be adjusted in the proper Working position or moved out of the Way of the work.

15. a bevel shearing machine, a frame, a main shaft, a rotary cutter mounted on one end of said shaft, a pair of auxiliary rotary cutters mounted above and below the first-named cutter, means for rotating the three cutters in unison, a Work holding roller associated with each auxiliary cutter, each roller being beveled whereby the work-engaging portion of the face of each roller lies in a horizontal plane.

In testimony that We claim the foregoing as our own, We have hereto affixed our signatures.

ALBERT R. ROBERTS." GEORGE T. SMITH. 

